Title:	Foregut morphology of Pseudothelphusidae and Trichodactylidae (Decapoda: Brachyura) from northeastern Pará, Brazil.
Authors:	ALVES, S. T. M. ABRUNHOSA, F. A. LIMA, J. de F.
Affiliation:	Soraya Tatiana M. Alves, Laboratório de Carcinologia, Instituto de Estudos Costeiros, Campus Universitário de Bragança, Universidade Federal do Pará; Fernando A. Abrunhosa, Laboratório de Carcinologia, Instituto de Estudos Costeiros, Campus Universitário de Bragança, Universidade Federal do Pará; JO DE FARIAS LIMA, CPAF-AP.
Date Issued:	2010
Citation:	Zoologia, Curitiba, v. 27, n. 2, p. 228-244, April, 2010.
Description:	The gross morphology of foregut was investigated and described in detail for four freshwater crab species: a pseudothelphusid, Fredius reflexifrons (Ortmann, 1897) and three trichodactylids ? Sylviocarcinus pictus (H. Milne-Edwards, 1853), Valdivia serrata White, 1847, and Dilocarcinus septemdentatus (Herbst, 1783). In general, the gastric mills of freshwater crabs showed a similar degree of complexity in relation to other marine species of Anomura and Brachyura previously described in the literature. However, significant morphological differences were observed among the analyzed species, as in ossicle numbers, features and connection types. A total of 38 ossicles were described for S. pictus and V. serrata and 37 ossicles for D. septemdentatus and F. reflexifrons, respectively. The latter species can be distinguished from the others by the presence of a wide cardiac sac resembling two sacs. Most of the ossicles were connected through a rigid connection, and few ossicles were fused. The degree of calcification varied little among the studied species. The differences found among the species suggest that the morphological aspects of the foregut may be useful in the identification of similar species.
Thesagro:	Crustáceo Caranguejo Morfologia animal
DOI:	10.1590/S1984-46702010000200011
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAF-AP)